package eacl import ( "crypto/ecdsa" "fmt" "github.com/nspcc-dev/neofs-api-go/pkg" cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id" "github.com/nspcc-dev/neofs-api-go/pkg/owner" v2acl "github.com/nspcc-dev/neofs-api-go/v2/acl" ) // Record of the EACL rule, that defines EACL action, targets for this action, // object service operation and filters for request headers. // // Record is compatible with v2 acl.EACLRecord message. type Record struct { action Action operation Operation filters []*Filter targets []*Target } // Targets returns list of target subjects to apply ACL rule to. func (r Record) Targets() []*Target { return r.targets } // SetTargets sets list of target subjects to apply ACL rule to. func (r *Record) SetTargets(targets ...*Target) { r.targets = targets } // Filters returns list of filters to match and see if rule is applicable. func (r Record) Filters() []*Filter { return r.filters } // Operation returns NeoFS request verb to match. func (r Record) Operation() Operation { return r.operation } // SetOperation sets NeoFS request verb to match. func (r *Record) SetOperation(operation Operation) { r.operation = operation } // Action returns rule execution result. func (r Record) Action() Action { return r.action } // SetAction sets rule execution result. func (r *Record) SetAction(action Action) { r.action = action } // AddTarget adds target subject with specified Role and key list. // // Deprecated: use AddFormedTarget instead. func (r *Record) AddTarget(role Role, keys ...ecdsa.PublicKey) { AddFormedTarget(r, role, keys...) } // AddRecordTarget adds single Target to the Record. func AddRecordTarget(r *Record, t *Target) { r.SetTargets(append(r.Targets(), t)...) } // AddFormedTarget forms Target with specified Role and list of // ECDSA public keys and adds it to the Record. func AddFormedTarget(r *Record, role Role, keys ...ecdsa.PublicKey) { t := NewTarget() t.SetRole(role) SetTargetECDSAKeys(t, ecdsaKeysToPtrs(keys)...) AddRecordTarget(r, t) } func (r *Record) addFilter(from FilterHeaderType, m Match, keyTyp filterKeyType, key string, val fmt.Stringer) { filter := &Filter{ from: from, key: filterKey{ typ: keyTyp, str: key, }, matcher: m, value: val, } r.filters = append(r.filters, filter) } func (r *Record) addObjectFilter(m Match, keyTyp filterKeyType, key string, val fmt.Stringer) { r.addFilter(HeaderFromObject, m, keyTyp, key, val) } func (r *Record) addObjectReservedFilter(m Match, typ filterKeyType, val fmt.Stringer) { r.addObjectFilter(m, typ, "", val) } // AddFilter adds generic filter. func (r *Record) AddFilter(from FilterHeaderType, matcher Match, name, value string) { r.addFilter(from, matcher, 0, name, staticStringer(value)) } // AddObjectAttributeFilter adds filter by object attribute. func (r *Record) AddObjectAttributeFilter(m Match, key, value string) { r.addObjectFilter(m, 0, key, staticStringer(value)) } // AddObjectVersionFilter adds filter by object version. func (r *Record) AddObjectVersionFilter(m Match, v *pkg.Version) { r.addObjectReservedFilter(m, fKeyObjVersion, v) } // AddObjectContainerIDFilter adds filter by object container ID. func (r *Record) AddObjectContainerIDFilter(m Match, id *cid.ID) { r.addObjectReservedFilter(m, fKeyObjContainerID, id) } // AddObjectOwnerIDFilter adds filter by object owner ID. func (r *Record) AddObjectOwnerIDFilter(m Match, id *owner.ID) { r.addObjectReservedFilter(m, fKeyObjOwnerID, id) } // TODO: add remaining filters after neofs-api#72 // ToV2 converts Record to v2 acl.EACLRecord message. // // Nil Record converts to nil. func (r *Record) ToV2() *v2acl.Record { if r == nil { return nil } targets := make([]*v2acl.Target, 0, len(r.targets)) for _, target := range r.targets { targets = append(targets, target.ToV2()) } filters := make([]*v2acl.HeaderFilter, 0, len(r.filters)) for _, filter := range r.filters { filters = append(filters, filter.ToV2()) } v2 := new(v2acl.Record) v2.SetAction(r.action.ToV2()) v2.SetOperation(r.operation.ToV2()) v2.SetTargets(targets) v2.SetFilters(filters) return v2 } // NewRecord creates and returns blank Record instance. // // Defaults: // - action: ActionUnknown; // - operation: OperationUnknown; // - targets: nil, // - filters: nil. func NewRecord() *Record { return new(Record) } // CreateRecord creates, initializes with parameters and returns Record instance. func CreateRecord(action Action, operation Operation) *Record { r := NewRecord() r.action = action r.operation = operation r.targets = []*Target{} r.filters = []*Filter{} return r } // NewRecordFromV2 converts v2 acl.EACLRecord message to Record. func NewRecordFromV2(record *v2acl.Record) *Record { r := NewRecord() if record == nil { return r } r.action = ActionFromV2(record.GetAction()) r.operation = OperationFromV2(record.GetOperation()) v2targets := record.GetTargets() v2filters := record.GetFilters() r.targets = make([]*Target, 0, len(v2targets)) for i := range v2targets { r.targets = append(r.targets, NewTargetFromV2(v2targets[i])) } r.filters = make([]*Filter, 0, len(v2filters)) for i := range v2filters { r.filters = append(r.filters, NewFilterFromV2(v2filters[i])) } return r } // Marshal marshals Record into a protobuf binary form. // // Buffer is allocated when the argument is empty. // Otherwise, the first buffer is used. func (r *Record) Marshal(b ...[]byte) ([]byte, error) { var buf []byte if len(b) > 0 { buf = b[0] } return r.ToV2(). StableMarshal(buf) } // Unmarshal unmarshals protobuf binary representation of Record. func (r *Record) Unmarshal(data []byte) error { fV2 := new(v2acl.Record) if err := fV2.Unmarshal(data); err != nil { return err } *r = *NewRecordFromV2(fV2) return nil } // MarshalJSON encodes Record to protobuf JSON format. func (r *Record) MarshalJSON() ([]byte, error) { return r.ToV2(). MarshalJSON() } // UnmarshalJSON decodes Record from protobuf JSON format. func (r *Record) UnmarshalJSON(data []byte) error { tV2 := new(v2acl.Record) if err := tV2.UnmarshalJSON(data); err != nil { return err } *r = *NewRecordFromV2(tV2) return nil }